calyceal diverticulum

ca·ly·ce·al di·ver·ti·cu·lum

(kal-i-sē'ăl dī'vĕr-tik'yū-lŭm)
A congenital or acquired distention of a kidney calyx that renders it susceptible to calculus formation.
References in periodicals archive ?
Initial differential diagnoses included partial staghorn stone, calyceal diverticulum with stones and chronic pyelonephritis, cystic renal cell carcinoma with calcification, TB, and fungus balls.
5) Although these findings may be "typical" of GU TB, the differential diagnoses include partial staghorn stone, calyceal diverticulum with stones, chronic pyelonephritis, cystic renal cell carcinoma with calcification, fungal infections and urothelial carcinoma.
Several clinical situations may contribute to upper tract urinary stasis such as ureteropelvic junction obstruction, calyceal diverticulum, medullary sponge kidney, hydronephrosis, and horseshoe kidney.
The localization of calculi was extremely difficult in some cases with hydronephrosis, lower calyceal calculi, or calyceal diverticulum calculi.